FPTN372726R1001

Supplied by Ahmedabad Electric Corporation, the ABB WB75-A is a compact mechanical latching unit designed to hold contactors securely in the closed position without requiring a continuous coil energization current. This model operates on a rated control circuit voltage of 24 V AC at 50 Hz, 24–28 V AC at 60 Hz, and 24 V DC. Once the contactor is energized and latched by the WB75-A, the power supply to the contactor coil can be disconnected. The contactor remains mechanically latched until an unlatching electrical pulse is delivered to the WB75-A coil or it is manually operated via the integrated pushbutton. This device eliminates coil humming, drastically reduces power consumption, prevents contactor dropping during control voltage loss or grid fluctuations, and is ideal for energy-critical automation, emergency systems, and memory-latch switching panels. Count on Ahmedabad Electric Corporation for 100% original ABB switchgear accessories, competitive pricing, and technical support